my phone is showing iphone unavailable screen, what should I do

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If you want an Apple representitive then you can reach out to Apple Support directly. You should be able to reach them here

Contact - Official Apple Support

See this Apple article: If you forgot your iPhone passcode

https://support.apple.com/en-us/HT204306

My phone is showing iphone unavailable, what should I do?

See this Apple article: If you forgot your iPhone passcode

If you forgot your iPhone passcode - Apple Support

Just trying to find out what is needed now my lifeline app has been completed

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I think if you have the tools at hand just do it as long as it is you doing things to your devices

I have no idea what you mean.

my phone is showing iphone unavailable screen, what should I do